Pencil sharpener



Dec. 26, J NESS PENCIL SHARPENER Filed June 25, 1932 LOS @p72 JVeSS -vide amore simple and `compact arrangement of Patented Dec. 2,6, 1933 i 1,940,966v PENCIL sHARr'ENEn v Joseph Ness, Rockford; Ill., assignor to Spengler Loomis Manufacturing Co., Chicago, Ill., a corporation of Illinois Application June 25, 1932. 'serial No.' 619,239'y l9 claims.V (o1. 12o-'96) This invention relates to improvements in pencil Sharpeners an-dmore particularly-to improvements in pencil Sharpeners having automatic feed devices. l

It has been heretofore proposed to clamp and support the'pencil to be sharpened and to'automatically feed the pencil'towards the lcutting means by resilient 'means effective to urge the pencil clamp towards the cutting means. Suchfdevices as heretofore disclosed. and used have materially complicated' the external parts of the pencil Sharpeners and the pencil clamp has been generally guided by a xed part of the supporting frame for the -pencil Sharpener.

Y 1t is an object of the present invention to prothe automatic pencil feeding mechanism.

rIt is further an object of the present invention tol slidably support the pencil clamping means by guiding'membe'rs extending'throughthe chip receptaclewhich is removably secured to the fixed support of' the pencil Sharpener in the ordinary manner.r 4 Y Y Y It is further an object of the present invention to' provide tubular guide members .extending through the chip receptacle between the end walls thereof which slidably receiveA tached to the'pencil clamping means'and which also receive resilient means surrounding the guiding rods which react in such a mannerA as to feed the pencil clamping means towards the cutting mechanism. In this arrangement the resilient feeding means is entirely concealed Within the chip receptacle.

Further objects and advantages of the present improvements will be more readily apparent from the following description taken in connection with the attached drawingin whichf v'Figure 1 is a side elevation of a pencil Sharpener;

Figure 2 is an end elevation of the pencil Sharpener;

Figure 3 is a detail horizontal section taken on the plane indicated 3-3 in Figure 2 and showing the guiding rods for the pencil clamp in extended relationship in readiness forA feeding a pencil towards the cutting mechanism, and

Figure 4 is a sectional View similar to Figure 3 showing the guiding rods for the pencil clamp in normal position.

Referring to the drawing, the base plate or xed support 10 carries a head 12. The head12 carries the conventional rotatable cutters actuated by the handle 14. The chip receptacle, generally indicated 16, is removably attached to the head 12 by a bayonet joint in the ordinary manner and it isgunderstood that the. chip receptacle encloses the rotatable cutters. tacle has an inner end wall 18 and an outer end wall 20,l which are held in spaced relation by the side pieces 22T-22. It will be noted that thev end wall :i8V has'a marginal flangeV 24'while'theend. The; side'v wall 20 has a marginal flange 26. pieces 22 overlap the marginal anges 24 and 26 and have end clip portions 28, bent to'extend through slots in the end wallsf18 and- 20 and to be clamped against the inner sides rof vthe marginal The enclosure of the chip re'- ceptacle is completedby a transparent piece 30 extending between the endwalls 18 and 20, and resting against the inner sidesof the `marginal flanges 24 and 26. i' 1 I a A pair of tubular guide members 32--32 are supported` to extend between the end Walls 18 andg20, as clearly shown in Figures 3 and 4. l'Ihe outer ends of the tubular members with head portions 34 forming vabutments for The chip recep- 32 are provided the tubes 32 againstthe end wall 20 and the inner ends of the tubes 32 are beaded over, as at 36, on the outer'side of the end Wall .18 Wherebyrthe tubes 32 are rigidly secured in position.

Slidable within the tubes 32 are a pair of rods 38 which are provided with slotted heads40 at their-inner ends which closely correspond tothe inner diameter ofthe tubes 32 so that they serve to'maintain the rods 38 concentric with the-tubesy 32. The rods 38 are further guided and supported by the head portions 34 of the tubes 32 which form guide bearings 42 closely fitting the rods 38. Compression spring .members 44 are carried by the rods 38 within the tubular members 32 and react between the heads 40 of the rods 38 and the bearings 42 of the head portions 34 of the tubular members 32.

It will be apparent, as shown in Figure 3, that when the rods 38 are pulled out in extended relationship with respect to the chip receptacle, that the springs 44 are compressed and tend to return the rods 38 to Vthe normal position shown in Figure 4. In normal position the slotted heads 40 of the rods 38 are in exposed position in order that the rods are accessible for adjustment into threaded engagement at their outer ends 46 with f extending between the the pencil clamp means may be drawn outwardly With respect to the chip receptacle against the resistance offered by compression of the springs 44. The pencil may then be inserted between the jaws 52 after separation thereof by operation of the levers 54. Thereupon the pencil will be supported in proper position for automatic feeding towards the rotatable cutters which may be actuated by rotation of the handle 14.

Various modifications out departing from the vention as expressed in I claim:

1. In a pencily Sharpener, aframe, rotatable cutting means supported by said frame, a chip receptacle removably attached to the frame and enclosing said cutting means and automatic means for gripping and feeding a pencil towards said cutting means slidably supported by said chip receptacle independently of said frame.

Y2. In a pencil Sharpener, a frame, rotatable cutting means supported by said frame, a chip receptacle removably attached to said frame and enclosing said cutting means, pencil gripping means,v means extending through said chip receptacle for-slidably supporting said pencil grippingmeans on said chip receptacle independently 4of said'frame and resilient means for automay be resorted to withspirit of the present inthe appended claims.

`maticallyfeeding the pencil gripping means towards said cutting means.

3. In a pencil Sharpener, a chip receptacle including a pair of spaced end Walls, a pair of tubular members extending between said end walls of said receptacle, a pair of guide rods extending within andY slidable with respect to said tubular members, pencil gripping means carried by said guide rods and resilient means enclosed within said tubular members eective to urge said pencil vgripping means in Ya direction towards said chip' receptacle.

4. In a pencil Sharpener, a removable chip receptacle including a1pair of spaced end Walls, a transparent side wall, a pair of tubular members side walls and Vwithin said receptacle, a pair of guide rods slidably associatedi with saidtubular members, said rods having enlarged heads closely tting `the interior of'said tubular members, a compression spring carried by each of said guide rods within each of saidtubular members,A said springs being arranged to react between said tubular members and the heads of said guide rods for moving said guide rods into said tubular members and pencil grip- Y ping means carried by said guide rods on the exterior of said receptacle for automatically feeding the pencil into said receptacle through expansion of said springs.

5In a pencil sharpener, a frame, rotatable cutting means supported by said frame, a chip receptacle enclosing said cutting means, nonrotatable pencil gripping means, means slidably supporting said pencil gripping means by said chip receptacle andv resilient means normally effectiveV to urge said pencil gripping means towards said cutting means.

6. In a pencil Sharpener, a chip receptacle, a pair of guides xedwith respect to said receptacle, a pair of' supports carried by and slidable with respect to said'guides, pencil gripping means carried by said supports and resilient means reacting. between said guides and said supports eiliective to urge said pencil gripping means in a direction towards said chip receptacle.

7. In a pencil Sharpener, a chip receptacle including a pair ofspaced end walls, a pair of tubular members extending between said end walls of said receptacle, a pair of guide rodsextending within and slidably supported by said tubular members, pencil gripping-means carried by said guiderods and resilient meansl eflective .to urge said gripping means in a direction towards said chip receptacle.

8.`In a pencil Sharpener, a chip receptacle'y a pair of guides xed with respect to said receptacle, a pair of supports carried by and slidable with respect to said guides, pencil gripping-means carried by said supports and'resilient means erf,- ective to urge said pencil gripping means in a direction toward said c hip receptacle.

9. In a pencil Sharpener, `a frame, rotatable cutting means supported by said frame, a. chip receptacle removably attached to said frame and enclosing said cuttingV means, pencil gripping means slidably supported and carried b y-said chip receptacleindependently of saidframe and resilient means enclosed within saidchip 'receptacle eiective to urge said pencil 'gripping means in a direction for feeding a pencil towards said cutting means.V Y

YJOSEPH NESS. 

